yee-haw /yēˈhô , jiˈhɔ 
/ (also yee-hah /ˈyē ˌhä/) ▸ exclamation North American an expression of enthusiasm or exuberance, typically associated with cowboys or rural inhabitants of the southern US.
– ORIGIN natural exclamation: first recorded in American English in the 1970s.
EnglishOxford New American Dictionary
